An actor like data model for a parallel DBMS

We present in this paper the new concept of "actor databases" (DB-Act) being studied at the INI institute (Act21 project) where we are developing a parallel main memory database system based on an actor like data model. To achieve data distribution we use a Scalable Distributed Data Structures (SDDS) called "distributed Compact Trie Hashing" (CTH*) currently in development at the same project. Transaction management and recovery techniques are adapted for the combination of actors and SDDS in Act21. An adaptation of the nested transaction model to the actor paradigm is presented, as well as a recovery techniques using a fuzzy checkpointing tailored to the SDDS needs.

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33983263

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